Not that the Cubs are going to win anything this season. In fact, they might not win 70 games. This team is being built to stink again, to trade anyone who has a good three months and to get a high draft pick.

So, this isn’t like Miguel Cabrera getting hurt. But Castro’s strained hamstring turns out to be hamstringing the Cubs in some ways.

Castro is the Cubs’ biggest disappointment, an attention-addled failing hitter. Javier Baez is the Cubs’ biggest prospect, a ferocious-swinging shortstop.

Castro is the shortstop whom former manager Bobby Valentine called out on ESPN for going on walkabout in the middle of an inning. Castro is the hitter whose batting average has plummeted more than 60 points in two seasons because he cannot learn to take pitches the way the Cubs demand.

Baez is the prospect who has become the Next Big Thing to the point where Baseball Prospectus called him a potential “role 8 player at the major-league level,’’ which is as good as it gets --- in the conversation as the best player in the game.

That’s the way the Cubs handled shortstop the first couple days after Castro’s injury, and that’s the way it apparently will continue. No matter how much crap Theo Epstein’s Cubs have given their fans, they won’t rush their kids even through spring training.

That’s some disciplined plan, huh?

But it makes sense. Epstein’s Cubs have refused to rush players to the majors for a lot of good reasons.

One, they don’t want to start the arbitration clock, thus maintaining control of good, maybe great, young players for the maximum number of years.

Two, the Cubs don’t want to kill their potential. They want to give their kids the best chance to star in the majors once they get there.

Three, they want to make the Cubs contenders annually, which can’t happen without disciplined development procedures.